Tire.



A. 0. ROVBLLI.

TIRE.

A P P L I 0 A T I 0 N T 1 L E D N 0 V. 14, 1911.

1,035,473. Patented Aug. 13, 1912.

' ion tires designed for use on automobile and other \QlilClO wheels, and which 1s designed To all whom it may concern TED "STATES PATENT. ()FBIQE.

ANGELO o. ROVELLI, or P ILADELPHIA,PENNSYLVA IA, ASSIGNbR or ONE-HALF T0 MAX srnozzr. 0F PHILADELPHIA, PENNSYLVANIA.

TIRE.

1 Specificetionof Letters Patent.

Patent-ed Aug. 13,1912.

' Application filed November 14, 1911. Ser-iatNo, 660,196.

Be it known that 1, ANGELO Ci ROVEL'LI, 'a subject ozt'the King of Italy, residing. at Philadelphia, in the.county of Philadelphia and State'ot' iemisylvania, have invented certam new and us'ctul Improvements in' Inns, of which the to'llowing 15 a spec1fica-' tion.

My invention relates to improvements in tires, and more particularly to resilient cushto talce theplacc oi the ordinary pneumatic U119.

hturther ob ect is to; provide a tire of this character which will embody in its con-.

stru'cti'o'n, strength, durability, elasticity and inherent .te'nsion members,,' which always maintain the t re 1n proper form. and sustainthe maximum of pressure or weight thereon.

A further object is to provide a'hollow tire withimprovedmembers thereinfnormallv under. tension holding the tire dis,

tended when in normal position.

-With these and other objects in view, the

invention consists in certain novel features of-construction and combinationsand-an range'ments t. parts as will be more fully. hereinafter described ElIiClPOllltGCl out in the claims. p

,In the accompanying drawings; Figure 1, 1s a new 111 cross section illustrating my "1marovements. Fi L'ZJis a. fra mentar View l a a in longitudinal section on a red-need scale. Fig, 3,.is a View in cross section. illustrating my improved tire before it is compressed in the rim, and Figs. 4 and 5, illustrate nibdi- 'fied' forms of tension members, which may be utilized in connection with my improved tire,

1, represents my IIHPIOVQCl' tire WlHClI IS' preferably otrubber, and' nay,'ot course, be strengthened and protected tromf wear in any way known to the trade.

1 tension members illustratedat 4.

In other words,-while"the tire isillustrated as a solld 5, is a rimwhich has a fixed flange 6 at one side, and a, removable r ng 7 at its other s1de,.-correspond ng with the flange G This flange G-and-ri'ng 7 are made will! inwardly projecting annular enlargements 8 which pro ect into grooves 9 1n the tire, and serve to elench the tire 'on the rim.

['I-lolts 10 are projected through the flange 0, tire 1 and ring 7,'and are securedby nuts '11, while blocksll are secured to the rim 5 by screws 13, and hold the inner portion of the ring 7 inplace.

The opening 2 in. the tire is preferably torme-d with its inner and outer walls imule convex, and its side walls concave Ill crosssection so as to accommodate my improved tens on members 4:. These tension members 4 are also of rubber or other resilient material which is capable of performing the "functions of the device. They may ,be made in any lengths (-losired,'a'i1d in assei nbling the the, they are positioned in the tire as shown in Fig. 3'.

one straight edge and one curvededgeas elearl'yshmvn in Fi -L3. 'VVhe'n. the inner portions pram tire are clamped in the rim, these tension. members are bowed as shown in Fig. 1, so that they exert an outwardpressure on the tire at all times. They are therefore normally under both compression and tension, and if the wei ht or pressure of thet-ir'e becoinesexcessive, theinuet "faces 0t these tension members will be brought together, and they will res1st the maximum of pressure without injuring the the. These tension members may be made 111 separate pieces as shown in Pig. 1, orthey may be made as shown in Figs. 4:,and 5.

In Fig. tggthe tension members are connected by an integral web 14:, while in I g, 5 the tension members are connected by 1ntegral bridge pieces 15. The shape may be ;varied as shown, but in any event, the one edge should be straight and the'inner edges or faces-of the members should slope, or

curve, being widest at' theircenter and narrowest at their edgesh"- I I I would have it I understood that by em-. ploying the terms tension members iii the claims hereinafter, Ifuse' this termtto designate either the separate pieces its-shown, 2, and 3,101; the pieces Vh16h flli in Figs. 1,

These tension members before the tire is QOInPIGSSQd 1n the rim have connected as shown in Fig. 4. In any event, the two members constitute tension members which may or may not be connected.

Various other slight changes might be made in the general form and arrangement of parts described without departing from my invention, and hence I do not limit myself to the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.

Having thus described" my invention, what I claim aisnew and desire to secure by Letters Patent is:

'1. A tire of the character described having a central opening therein, and two tension members of resilient material located in said opening and bowed toward each other, and engaging the tire at their inner and cut-er edges only, said tension members normally having one straight and one, inclined or tapering wall, substantially as described.

2. A tire of the character described, having a central opening split throughout its 5 length atits' inner portion, the outer and inner walls of said opening convex throughout, and the side walls of said opening concaved, and tension members positioned longitudinally of the tire and normally btiwed and under tension when in the tire, and engaging the tire at their inner and outer edges only, substantiallyas described.

In testimony whereof I have signed my name to this specification in the presence of 35 two subscribing witnesses.

ANGELO o. novELLi; I

Witnesses: v

R. H. KRENKEL,

CHAS. E. Poms.- 

